In some ways it sounds like a reverse version of New York-based beverage company Long Island Iced Tea’s December 2017 decision to rename itself Long Blockchain Corp when it began considering entering the blockchain business—a move that saw its stock jump 200%. Wenzhou, China-based xSigma, on the other hand, is sure is putting a lot of emphasis on the backing of its NASDAQ-listed pipe-making parent firm as proof of legitimacy.

Steel pipe maker ZK International is getting into DeFi. Have we mentioned it's NASDAQ-listed? (Photo: Pixabay/Rupert Kittinger)